#include <stdio.h>
#include <math.h>
int main()
{
    double y;
    int x,m;
    for(y == 1;y >= -1;y -= 0.1)
    {
        m = acos(y)*10;
        for(x = 1;x < m;x++)printf(" ");
        printf("*");
        for(;x<62-m;x++)printf(" ");
        printf("*\n");
    }
}